From: Genetic Science Learning Center at University of Utah OBSERVABLE TRAITS Take a look at several inherited human traits and learn more about them. Which variations do you have? From: Genetic Science Learning Center at University of Utah

Forms of Colorblindness VISUAL ACUITY A person who has sufficient visual acuity should see the number twelve in the circle on the right whether or not they have normal color vision.

Forms of Colorblindness A person with normal color vision sees a number seven in the circle on the right. Those who are colorblind usually do not see any number at all.

Forms of Colorblindness RED-GREEN COLORBLINDNESS People with red-green colorblindness see either a 3 or nothing at all. Those with normal color vision see an 8.

Forms of Colorblindness PROTANOPIA & DEUTERANOPIA Those with normal vision see the number 35 in the circle to the right. A person with protanopia sees only the number five. A person with deuteranopia sees the number three. People who are partially colorblind will see both numbers but one more distinctly than the other.